OS Guest accounts are not supported | CC 2019

Issue

Creative Cloud apps version CC 2019 or later use several Operating System security features to ensure that your apps and subscriptions remain safe and secure.

Guest accounts on modern OSes, such as macOS and Windows 10, are highly restricted and sandboxed and do not give write permissions to areas required by Creative Cloud applications. Also, all files created by the guest user are deleted once the user logs out.

Installing and using Adobe Creative Cloud apps on Guest accounts is not recommended or supported.

Resolution

Adobe recommends that you use regular user accounts to install Creative Cloud apps.